This product is "new-open box" - the box was opened, the product was not used, tested for proper operation and is in a perfect working condition. In an original box. Acoustic Research AW772 900MHz Wireless Stereo Headphones – Black Jam to your favorite tunes or take your gaming to the next level without distracting others with these comfortable wireless headphones. Auto tune technology allows you to customize the settings for optimal results. Features - 900MHz wireless technology - Transmits audio signal wirelessly at distances of up to 150' from transmitter - Auto tune with PLL technology and volume controls on the side of the headphones allows you to adjust the settings for optimal performance - Channel selection control reduces frequency interference - Adjustable headband features semi rotating earcups with velvet pads for a comfortable fit - Charging cradle with indicator light conveniently recharges headphones when placed in base; uses 2 rechargeable AAA batteries - Frequency response: 20Hz - 20kHz Specifications - Product Height - 11-9/10" - Product Width - 8-7/10" - Product Weight - 2.75 lbs. - Product Depth - 5-3/5" - Headphone Type - Wireless - Headphone Style - Over-the-head - Sound Isolating - No - Frequency Response - 20Hz - 20kHz